CN1775439A - Method for removing crest burr of screw initial thread - Google Patents

Abstract

The present invention relates to a method for removing tooth crest burr of initial tooth of screw thread. Said method includes the following steps: selecting cutter, mounting cutter, setting cutter and batch processing. Said invention adopts screw cutter and rectangular grooving cutter to continuously make burr-removing operation according to numerical control program on the numerically-controlled machine tool.

Description

Remove the method for crest burr of screw initial thread

Technical field

The present invention relates to Screw thread process method, particularly a kind of method of removing crest burr of screw initial thread.

Background technology

When cutted thread,, when measuring, be easy to produce error, make measurement result untrue with external thread gauge because there is burr easily in the initial imperfect tooth that lathe tool produces when just having gone into workpiece; Regular meeting's amount of damage rule are reduced its service life when screwing, and also can scratch finger, are difficult to screw simultaneously when the male and female threaded engagement, and initial tooth burr is more serious when particularly processing steep-pitch thread, endangers bigger.Traditional burr removing method is little by little to remove or remove with the milling method with file with manual, and not only labour intensity is big, and efficient is low, and difficult quality guarantee.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of time saving and energy saving, and the production efficiency height can guarantee the method for the removal crest burr of screw initial thread of crudy.

Technical scheme of the present invention is: behind the good screw thread of turning on the Digit Control Machine Tool, scabble the crest of the imperfect tooth of screw initial thread again with the rectangle grooving cutter, concrete operation method is:

A, select cutter: select the rectangle grooving cutter for use, its width is more than or equal to the pitch of the screw thread of turning;

B, dress cutter: screwer and rectangle grooving cutter are distinguished clamping on two cutter spacing of Digit Control Machine Tool cutterhead;

C, tool setting: aim at same a starting point when making screwer point of a knife and the sword feed of the rectangle grooving cutter left side;

D, trial cut are cut: keep machine spindle speed constant, earlier with the good screw thread of screwer turning, scabble initial imperfect sound of baby talk top with the rectangle grooving cutter again, whether the Cutting trajectory of seeing two cuttves is identical, adjust as identical then need not, then realize that by the cutter point position that changes screwer in the numerical control program two cutter tracks are identical as difference;

E, batch machining: carry out the turning processing of screw thread continuously and remove crest burr of screw initial thread by numerical control program, need not to do again any adjustment.

And then the present invention scabbles screw initial thread sound of baby talk top with the rectangle grooving cutter after using the good screw thread of screwer turning on the Digit Control Machine Tool, thereby removes burr, just can process continuously automatically after once adjusting, thus easy and simple to handle, time saving and energy saving, production efficiency height, and processing specification standard can be ensured the quality of products.

The specific embodiment

The invention will be further described below by embodiment.

After processing screw thread on the Digit Control Machine Tool, scabble the crest of the imperfect tooth of screw initial thread as follows:

A, select cutter: select the rectangle grooving cutter for use, the pitch 1mm (thread pitch 4mm) of the screw thread of its width after greater than turning;

B, dress cutter: screwer and rectangle grooving cutter are distinguished clamping on two cutter spacing of Digit Control Machine Tool cutterhead;

C, tool setting: aim at same a starting point when making rectangle grooving cutter left side sword and the feed of screwer point of a knife;

D, trial cut are cut: workpiece blank is clamped on the machine tool chief axis chuck, press the nc program of product and use earlier the screwer machining screw, keep machine spindle speed constant, scabble initial imperfect sound of baby talk top with the rectangle grooving cutter again, whether the Cutting trajectory of seeing two cuttves is identical, adjust as identical then need not, then realize that by the cutter point position that changes screwer in the numerical control program two cutter tracks are identical as difference;

E, batch machining: carry out the turning processing of screw thread continuously and remove crest burr of screw initial thread by numerical control program, need not to do again any adjustment.

Claims (1)

1, a kind of method of removing crest burr of screw initial thread is characterized in that scabbling the crest of the imperfect tooth of screw initial thread again with the rectangle grooving cutter behind the good screw thread of turning on the Digit Control Machine Tool, and concrete operation method is:

A, select cutter: select the rectangle grooving cutter for use, its width is more than or equal to the pitch of the screw thread of turning;

B, dress cutter: screwer and rectangle grooving cutter are distinguished clamping on two cutter spacing of Digit Control Machine Tool cutterhead;

C, tool setting: aim at same a starting point when making screwer point of a knife and the sword feed of the rectangle grooving cutter left side;

D, trial cut are cut: keep machine spindle speed constant, earlier with the good screw thread of screwer turning, scabble initial imperfect sound of baby talk top with the rectangle grooving cutter again, whether the Cutting trajectory of seeing two cuttves is identical, adjust as identical then need not, then realize that by the cutter point position that changes screwer in the numerical control program two cutter tracks are identical as difference;

E, batch machining: carry out the turning processing of screw thread continuously and remove crest burr of screw initial thread by numerical control program, need not to do again any adjustment.